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Hydrogenated Butylene/Ethylene/Styrene Copolymer
AKA “
Hydrogenated Polymer, Styrenic Copolymer
”
Synthetic
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Ingredient Facts
Hydrogenated butylene/ethylene/styrene copolymer
AKA: Hydrogenated Polymer, Styrenic Copolymer
Synthetic · Skin Conditioning - Emollient | Viscosity Controlling · EWG: 4
WHAT IS IT?
Plant-Derived
Emollient
Skin Conditioner
Synthetic
Clean
Ethenylbenzene, polymer with butene and ethene, hydrogenated Science: Process: Catalytic Hydrogenation | Functions: Skin Conditioning, Skin Conditioning - Emollient, Viscosity Controlling Safety Ratings: CIR: Safe as used
Form
Liquid
WHERE'S IT COME FROM?
Plant-Derived
Synthetic
WHAT'S IT DO?
Function
Skin Conditioning - Emollient | Viscosity Controlling
Benefits
Locks In Moisture
Traditional Use
A modern synthetic copolymer created for cosmetics in the late 20th century. Used as a thickener, texturizer, and film-former in skincare and makeup products.
WHO'S IT FOR?
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
IS IT SAFE?
Restricted By
Ulta Conscious Beauty
EWG Score
4
CIR Safety Findings
medical-approval, all-shades-safe
Regulatory Status
USA
under review
EU
⚠ restricted
JAPAN
⚠ restricted
CANADA
⚠ restricted
Regulatory Agencies
EWG
CIR
FDA
EU COSING
Health Canada
Verified Feb 2026
Data: CosIng · EWG · CIR